Pure Niobium Customizable ring cores brushed top and polished comfort interior. Unetched finish, will need to be Heat treated and / or anodize to reveal the pattern / color
8mm total width, Approx. 2.7 mm thick , Comfort fit interior
Flat top with no inlay groove, perfect for ring makers wanting to customize the channel to any requirement.
No need to make the core from scratch, all that's required is a channel and a little finishing afterwards and these become custom cores.
sizes 7-13 available